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You don’t need to switch exclusively to natural and organic fertilizers, but you must demonstrate that they you used best management practices during at least 20% of the time. Performance metrics include but are not limited to the amount of natural fertil

You don’t need to switch exclusively to natural and organic fertilizers, but you must demonstrate that you used best management practices during at least 20% of the time. Performance metrics include but are not limited to the amount of natural fertilizers used versus the amount of artificial chemicals used, by gallons or cost.

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